# Sauermann Combustion vs Water Sense

The clearest difference is ads: Water Sense at none against Sauermann Combustion's shown. Water Sense also leads on update cadence (monthly vs every 2 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Sauermann Combustion ships an update every 2 months, Water Sense monthly. The most recent releases landed on October 27, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Sauermann Combustion | Water Sense |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Monthly** |
| Size | 25 MB | 28 MB |
| Requires iOS | **14.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SAUERMANN INDUSTRIE](https://appshunter.io/developer/1169513729) | [Michael Beukman](https://appshunter.io/developer/1683543852) |

## What reviewers say

### Sauermann Combustion

[App page](https://appshunter.io/ios/app/sauermann-combustion/id1520008258)

**Features:** macOS Compatibility

**In-app purchases:** none


### Water Sense

[App page](https://appshunter.io/ios/app/water-sense/id6448119335)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Sauermann Combustion free?

Sauermann Combustion is free to download, with no in-app purchases.

### Is Water Sense free?

Water Sense is free to download, with no in-app purchases.

### Do Sauermann Combustion or Water Sense have ads?

Sauermann Combustion shows ads; Water Sense does not.

### Which is updated more often, Sauermann Combustion or Water Sense?

Sauermann Combustion ships an update every 2 months, and Water Sense monthly. Most recently, Sauermann Combustion was updated on October 27, 2026 and Water Sense on November 7, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*